malloc: Use __get_nprocs on arena_get2 (BZ 30945)
[glibc.git] / gmon / profil.c
blob7e53f9359ce802d30e3379df1e146c2017fb1d16
1 /* Low-level statistical profiling support function. Stub version.
2 Copyright (C) 1995-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
19 #include <sys/types.h>
20 #include <unistd.h>
21 #include <errno.h>
23 /* Enable statistical profiling, writing samples of the PC into at most
24 SIZE bytes of SAMPLE_BUFFER; every processor clock tick while profiling
25 is enabled, the system examines the user PC and increments
26 SAMPLE_BUFFER[((PC - OFFSET) / 2) * SCALE / 65536]. If SCALE is zero,
27 disable profiling. Returns zero on success, -1 on error. */
29 int
30 __profil (u_short *sample_buffer, size_t size, size_t offset, u_int scale)
32 if (scale == 0)
33 /* Disable profiling. */
34 return 0;
36 __set_errno (ENOSYS);
37 return -1;
39 weak_alias (__profil, profil)
40 stub_warning (profil)